What does the law of conservation of mass state?

Understanding the Law of Conservation of Mass

Interactive Video
•
Chemistry, Science
•
6th - 8th Grade
•
Hard

Ethan Morris
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mass changes with temperature.
Mass can be created or destroyed.
The mass of products and reactants must be equal.
Mass is only conserved in closed systems.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which chemicals were used in the experiment setup?
Cobalt chloride and sodium nitrate
Sodium chloride and cobalt sulfate
Cobalt nitrate and sodium carbonate
Sodium sulfate and cobalt carbonate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is formed when cobalt nitrate and sodium carbonate are mixed?
Sodium chloride
Sodium nitrate
Cobalt sulfate
Cobalt carbonate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What observation proves the law of conservation of mass in the experiment?
The color of the solution changes.
The volume of the solution decreases.
The temperature of the mixture increases.
The mass remains the same after mixing.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the law of conservation of mass important in chemical reactions?
It allows for the calculation of reactant quantities.
It ensures that energy is conserved.
It helps in predicting the color of products.
It determines the speed of reactions.
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